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Vintage RC Helicopters - Joe's Collection - Protech Joe's Collection - Protech Joe William Richardson Protech Zoom 400
After nearly a twenty year break, the Zoom 400 was my first collective helicopter and the one that allowed me up to attain competent hovering. However, this was not without 'mishap' as you can see I had to 'learn' in a very enclosed space and the reason it took me quite a few main shafts, blades and spindles; those chair legs were very 'unforgiving'. My first Zoom now has over 250 flights and is still reasonably original; well, about 60% anyway. Still running a 'can' motor though now it has performance that is barely satisfactory with cyclic control desperately slow. What is interesting is that there was a time when I though it was bordering on too responsive?????
Two more active Zoom 400's which have various levels of upgrades including metal swashplate's, rear tail servo's and both have brushless motors. Heads run at a much higher speed and so response is increased though as yet I have not tried any loops and rolls with these. Forth Zoom 400 is in bits awaiting a rebuild and fitting in a scale fuselage (Augusta 109). Protech Zoom 450EP
Bought Nov 08 as an E-bay purchase and had only been used a couple of times but the owner could not get it to hover properly and so gave up. When checked out one of the Eccpm servo's was found to be defective with intermittent and jerky control which would appear to have been the reason for the owners problems. Must have also taken a knock because as well as a replacement servo it required a few new parts, spindle shaft etc. Tested and very controllable in hovering and circuits but tail tends to kick out in quick turns. In Jul 09 I had carried out more testing resulting in a much better set up with the tail quite controllable (stiff linkage was the original problem). Protech Zoom 400 / Zoom 400 Pro / Zoom 425 / Zoom 450IC
Jul 09 - All new kits / ARF's Top of Page (VRHC - Vintage Radio controlled HeliCopters) |
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